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Yashni G, Al-Gheethi A, Radin Mohamed RMS, Dai-Viet NV, Al-Kahtani AA, Al-Sahari M, Nor Hazhar NJ, Noman E, Alkhadher S. Bio-inspired ZnO NPs synthesized from Citrus sinensis peels extract for Congo red removal from textile wastewater via photocatalysis: Optimization, mechanisms, techno-economic analysis. Chemosphere 2021; 281:130661. [PMID: 34029959 DOI: 10.1016/j.chemosphere.2021.130661] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 03/23/2021] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
Textile industry is one of the most environmental unfriendly industrial processes due to the massive generation of colored wastewater contaminated with dyes and other chemical auxiliaries. These contaminants are known to have undesirable consequences to ecosystem. The present study investigated the best operating parameters for the removal of congo red (CR, as the model for dye wastewater) by orange peels extract biosynthesized zinc oxide nanoparticles (ZnO NPs) via photocatalysis in an aqueous solution. The response surface methodology (RSM) with ZnO NPs loadings (0.05-0.20 g), pH (3.00-11.00), and initial CR concentration (5-20 ppm) were used for the optimization process. The applicability of ZnO NPs in the dye wastewater treatment was evaluated based on the techno-economic analysis (TEA). ZnO NPs exhibited hexagonal wurtzite structure with = C-H, C-O, -C-O-C, CC, O-H as the main functional groups. The maximum degradation of CR was more than 96% with 0.171 g of ZnO NPs, at pH 6.43 and 5 ppm of CR and 90% of the R2 coefficient. The specific cost of ZnO NPs production is USD 20.25 per kg. These findings indicated that the biosynthesized ZnO NPs with orange peels extract provides alternative method for treating dye wastewater.
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Affiliation(s)
- G Yashni
- Micropollutant Research Centre (MPRC), Department of Water and Environmental Engineering, Faculty of Civil Engineering & Built Environment, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia
| | - Adel Al-Gheethi
- Micropollutant Research Centre (MPRC), Department of Water and Environmental Engineering, Faculty of Civil Engineering & Built Environment, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia.
| | - Radin Maya Saphira Radin Mohamed
- Micropollutant Research Centre (MPRC), Department of Water and Environmental Engineering, Faculty of Civil Engineering & Built Environment, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia.
| | - N Vo Dai-Viet
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam
| | - Abdullah A Al-Kahtani
- Department of Chemistry, College of Science, Bld#5, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohammed Al-Sahari
- Micropollutant Research Centre (MPRC), Department of Water and Environmental Engineering, Faculty of Civil Engineering & Built Environment, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia
| | - Nurul Jihan Nor Hazhar
- Micropollutant Research Centre (MPRC), Department of Water and Environmental Engineering, Faculty of Civil Engineering & Built Environment, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia
| | - Efaq Noman
- Department of Applied Microbiology, Faculty of Applied Sciences, Taiz University, Taiz, Yemen; Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Pagoh Higher Education Hub, KM 1, Jalan Panchor, 84000, Panchor, Johor, Malaysia
| | - Sadeq Alkhadher
- Micropollutant Research Centre (MPRC), Department of Water and Environmental Engineering, Faculty of Civil Engineering & Built Environment, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia
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Yukesh Kannah R, Kavitha S, Parthiba Karthikeyan O, Kumar G, Dai-Viet NV, Rajesh Banu J. Techno-economic assessment of various hydrogen production methods - A review. Bioresour Technol 2021; 319:124175. [PMID: 33022437 DOI: 10.1016/j.biortech.2020.124175] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/19/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Hydrogen is a clean fuel that could provide energy incentives and reduce environmental impacts, if production platform is carefully selected and optimized. In specific, techno-economic and sensitivity analysis of the existing hydrogen production platforms and processes is need for an hour to boost the future hydrogen economical aspects. This will have greater impact on future hydrogen production project designs and developing new approaches to reduce the overall production costs to make it as cheaper fuel. The sensitivity analysis of various hydrogen production process such as pyrolysis, gasification, steam reforming of natural gas, dark fermentation, photobiolysis, water electrolysis and renewable liquid reforming were reviewed to evaluate their merits and demerits along with cost-effectiveness. On economic view point, steam reforming of natural gas is efficient, low cost and best methods for hydrogen production. A future research is required to reduce energy input and trapping carbon dioxide emission using membrane models.
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Affiliation(s)
- R Yukesh Kannah
- Department of Civil Engineering, Anna University Regional Campus Tirunelveli, India
| | - S Kavitha
- Department of Civil Engineering, Anna University Regional Campus Tirunelveli, India
| | - O Parthiba Karthikeyan
- Department of Engineering Technology, College of Technology, University of Houston, Houston, TX - 77204, USA
| | - Gopalakrishnan Kumar
- School of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - N Vo Dai-Viet
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City 755414, Viet Nam
| | - J Rajesh Banu
- Department of Life Sciences, Central University of Tamilnadu, Tiruvarur, India.
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